fix typo
Merge pull request #782 from liluo/dev

fix typo
Minor gemspec edits
Check line length for minified for now
Add composer.lock to JSON filenames

[Composer](http://getcomposer.org] uses one configuration file (composer.json) and
one lock file (composer.lock). They both use valid JSON.

Example: https://github.com/OpenBuildings/jam/blob/master/composer.lock
Add five new extensions to XML, YAML in support of ROS usage.

These extensions are in common use in packages part of ROS, the Robot Operating System.

[urdf](http://wiki.ros.org/urdf), [srdf](http://wiki.ros.org/srdf): These are Robot Description Files, XML documents which describe the physical realities of a robotics platform, for the purposes of consumption by common libraries.

[xacro](http://wiki.ros.org/xacro) is for input files to the XML macro processor xacro, which is used in ROS to output URDF and SRDF files.

[launch](http://wiki.ros.org/roslaunch/XML): Documents which describe sets of ROS nodes to launch together.

[rviz](https://github.com/ros-visualization/rviz/blob/hydro-devel/default.rviz): YAML configuration files belonging to the [rviz](http://wiki.ros.org/rviz#Overview) utility.

Each one has been in use for several years in various ROS-related applications; lots of examples should be apparent in orgs like ros, ros-drivers, ros-visualization, pr2, turtlebot, husky, etc.

Thanks for your consideration!
Merge pull request #791 from mikepurvis/patch-1

Add five new extensions to XML, YAML in support of ROS usage.
Merge pull request #790 from hkdobrev/composer-lock

Add composer.lock to JSON filenames
Changed primary extension for Max

Changed primary extension for Max to .maxpat 
.mxt is a legacy file format.
Moved the Max examples to the Max folder
Merge pull request #794 from natcl/patch-1

Changed primary extension for Max
Just the extensions for now
Update samples